FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term chordotonal organ ID (Ontology) FBbt:00005215 (Fly Anatomy)
Definition Mechanosensory organ, generally attached to the body wall, spanning different parts of the exoskeleton. It consists of one or more scolopidia and detects tension or vibration.[ FlyBase:FBrf0056378 FlyBase:FBrf0237124 ]
Also Known As"co" ; "scolopophorous organ" ; "sensilla scolopophora"
Comment
Links to External Ontologies
VFB:FBbt_00005215
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Data ClassFieldDirect annotations
Alleles (FBal)PHENOTYPE_MANIFEST_IN
Insertions (FBti)EXPRESSION_STAGE_TISSUE_POSITION
Insertions (FBti)PHENOTYPE_MANIFEST_IN
Constructs (FBtp)PHENOTYPE_MANIFEST_IN
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Relevant FlyBase reports
 Alleles Genes Images Insertions Constructs
 chordotonal organ (all annotations which use CV term, excluding "NOT" statements)
     chordotonal organ | ectopic
      --       --       --
     chordotonal organ | ectopic | embryonic stage
      --       --       --       --
     chordotonal organ | embryonic stage
      --       --       --       --
     chordotonal organ | embryonic stage 16
      --       --       --       --
     chordotonal organ | embryonic stage | germline clone
      --       --       --       --
     chordotonal organ | embryonic stage | lateral
      --       --
      --
     chordotonal organ | heat sensitive
      --       --       --
     chordotonal organ | larval stage
      --       --       --       --
     chordotonal organ | lateral
      --       --
      --
     chordotonal organ | lateral | maternal effect
      --       --       --       --
     chordotonal organ | P-stage
      --       --       --       --
     chordotonal organ | ventral
      --       --
      --
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Vocabulary search 
sense organ
 |__mechanosensory sensory organ__
 |__internal sense organ__________|
mechanosensory system             |
 |__mechanosensory sensory organ__|
                                  chordotonal organ  667 rec.
                                   |__abdominal 9 lateral chordotonal organ lch3/1 1 rec.
                                   |__adult chordotonal organ 172 rec.
                                   |   |__adult chordotonal organ of prothoracic segment(+) 7 rec.
                                   |   |__chordotonal organ of leg(+) 38 rec.
                                   |   |__chordotonal organ of scabellum(+) 5 rec.
                                   |   |__chordotonal organ of wing(+) 20 rec.
                                   |   |__Johnston organ 115 rec.
                                   |   |__Wheeler's organ 6 rec.
                                   |__chordotonal organ of prothoracic segment 10 rec.
                                   |   |__adult chordotonal organ of prothoracic segment(+) 7 rec.
                                   |   |__prothoracic dorsal triscolopidial chordotonal organ dch3 1 rec.
                                   |   |__prothoracic lateral triscolopidial chordotonal organ lch3
                                   |   |__prothoracic ventral monoscolopidial chordotonal organ vch1
                                   |__embryonic/larval maxillary chordotonal organ with two scolopidia 7 rec.
                                   |__monoscolopidial chordotonal organ 38 rec.
                                   |   |__abdominal lateral monoscolopidial chordotonal organ lch1(+) 14 rec.
                                   |   |__abdominal ventral monoscolopidial chordotonal organ vch1(+) 18 rec.
                                   |   |__abdominal ventral monoscolopidial chordotonal organ vch2(+) 4 rec.
                                   |   |__mesothoracic ventral monoscolopidial chordotonal organ vch1 2 rec.
                                   |   |__metathoracic ventral monoscolopidial chordotonal organ vch1
                                   |   |__pharyngeal monoscolopidial chordotonal organ 5 rec.
                                   |   |__prothoracic ventral monoscolopidial chordotonal organ vch1
                                   |__pentascolopidial chordotonal organ 151 rec.
                                   |   |__abdominal lateral pentascolopidial chordotonal organ lch5(+) 147 rec.
                                   |__scolopidium 135 rec.
                                   |   |__femoral chordotonal organ scolopidium(+) 5 rec.
                                   |   |__scolopale cell(+) 39 rec.
                                   |   |__scolopale rod 7 rec.
                                   |   |__scolopidial dendritic cap cell(+) 37 rec.
                                   |   |__scolopidial ligament cell(+) 25 rec.
                                   |__triscolopidial chordotonal organ 20 rec.
                                       |__abdominal 8 lateral chordotonal organ lch3 1 rec.
                                       |__mesothoracic dorsal triscolopidial chordotonal organ dch3 15 rec.
                                       |__metathoracic dorsal triscolopidial chordotonal organ dch3 15 rec.
                                       |__prothoracic dorsal triscolopidial chordotonal organ dch3 1 rec.
                                       |__prothoracic lateral triscolopidial chordotonal organ lch3
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Is a mechanosensory sensory organ
internal sense organ
Develops from chordotonal organ precursor cell
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UBERON:0001038
VFB:FBbt_00005215